Hula hoops, physics and ReadyMade Magazine's Jen Trolio.

Sarah shows you how to master new skills on the fly, Dr. Kiki explains the physics behind hula hooping, Moujan melts and old toothbrush into a fabulous toothbrush holder and Heather explains the merits of something under-appreciated that lives in the sea.

Cut two 10" squares of fabric from the seat of the jeans, making sure that the back pockets are as close as possible to the center of each square.

For the insulation, cut as many 10" squares from the legs of the jeans as possible, and distribute them evenly between the two pot holders, or use two 10" pieces of wool batting. Once the pot holders are assembled, each one will have three layers: the pocket side, the contrasting fabric side, and an insulating layer of denim or wool in between.

For each pot holder, line up the middle insulating layer with the contrasting fabric, wrong sides together. Pin in place.

Line up the pocket sides and the pinned pieces, with the right sides of the pocket pieces and the contrasting fabric pieces facing. Pin in place.

Stitch around three sides of each pot holder with a 1/2" seam allowance. Take it slow to avoid breaking your needle, since the material will be thick.

Learn more about torque, friction, centripetal force and the overall physics of hula hooping and other totally rad science on Dr. Kiki's blog.

Sarah's On the Prowl: Video Tutorials in under 5 minutes!

Looking to learn a new skill really quickly? Check out 5min: http://5min.com. Everything from yoga, to piano, to dancing moves, and more! Plus, upload your own tutorial videos if you've got a skill you can share with others in five minutes or less.

Remix: Create a toothbrush holder from A TOOTHBRUSH!

Materials:

Water!

String!

Epoxy!

Suction cup!

Translucent plastic toothbrushes!

Large pot!

Rubber insulating gloves?

Directions:

Fill a pot with water, enough to insert the toothbrush upright.

Boil the water.

Put some string around your toothbrush, dip into the pot. Make sure the bristles don't touch the water or else they'll fall off.

Keep the toothbrush in the boiling water for 3 to 5 minutes until the plastic becomes flexible. Now get ready to work fast...DAMMIT!

Take the toothbrush out with the string and using the rubber insulating gloves, bend and curl the toothbrush into a spiral. Place the toothbrush back into the pot if it hardens too quickly.

After your plastic cools, take your epoxy to glue the suction cup to the back.

After the epoxy has dried, you are done! Place your creation in your bathroom.